Room air fan housing



FIG. 1 is an isometric view of the design for a room air fan housing;

FIG. 2 is a front elevational view thereof, the rear being a mirror image of that shown;

FIG. 3 is a side elevational view thereof taken from the right of FIG. 2; and,

FIG. 4 is a top plan view thereof, the left elevational view being identical to the top plan view. 

The ornamental design for a room air fan housing, as shown and described. 